James west



(No Model.) 2 sheetssheer. 1.

J. WEST.

DEVICE FOR PUNGHING WEBS 0F PAPER.

Patented Feb. 1.5,..1-898.

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(No Model.) 2 Sheets-Sheet 2.

J. WEST.

DEVICE EGR PUNGHING WEBS 0E PAPER. No. 599,207, 'Patented Peb. 15,1898.

Figi- "Z Z ,lf 7F zl 5o secured, and it is necessary that these holes UNITED STATES PATENT OFFICE,

JAMES WEST, OF ST. LOUIS, MISSOURI, ASSIGNOR OF ONE-HALF TO SAMUEL CUPPLES, OF SAME PLACE.

DEVICE FOR PUNCHINGNVEBS OFPAPER.

' SPEQI FICAFIIOIIA forming part of Letters Patent No. 599,207, dated February 15, 1898.

y Application led September 19,1891. Renewed January 13, 1898. Serial No. 666,576. (No model.)

To all whom it may cori/cern: l

Be it known that I, JAMES WEST, a citizen of the United States, residing at St. Louis, in the State of Missouri, have invented certain new and useful Improvements in Devices for Punching Webs of Paper, of which the following is a specification. v My invention relates to devices for punching webs of paper, and while it may be applied for varioususes in different kinds of machines it is especially applicable to punching paper fed to a paper-bag machine to form a hole in the bag or bags made from the paper, byY means of which the bags may be supported in a position to be readily detached or removed one by one or otherwise as they are being used. The object of my invention is to provide a simple, cheap, and effective device whereby the web of paper may be punched in the desired position and whereby the device may be readily applied to existing bag or other machines Without material or expensive modifications therein; and it consists in the features of construction and arrangement and the mode'of operation, substantially such as herein more particularly pointed out.

Referring to the accompanying drawings, wherein I have illustrated a preferred embodiment of my invention sufficient to explain they principles and mode of operation thereof, and applied to a paper-bag machine, Figure'l is a longitudinal sectional view showing sufficient of the machine to illustrate my. invention. Fig. 2 is a transverse vertical section showing the punching device; and Fig. 3 is a plan view of a portion of a roll, showingthe punching device applied thereto and arranged to operate upon a web of paper or other material passing over the roll.

I have shown my invention as applied to a paper-bag machine in which the paper is taken from a roll and passed into the machine and formed into a longitudinal tube, which tube is divided into bag lengths, arid the bottom folds are formed in any usual and desired manner. As above indicated, it is desirable that each completed bag should be provided with one or more holes near its open end., by which the bag may be suspended or otherwise should correspond and be in the same relative position on all the bags made'. Prior to my invention it has been proposed to provide paper bags with such a hole, and means have, been devised for forming the holes; but so far as I am aware no one has proposed lforming the holes in the web of paper prior to manipulating it in the process of formingthe bagsfrom the web. I have found it to be of material yadvantage to punch the web before it is manipulated to form the tube or bag for many reasons, among which may be stated that the device for performing the punching operation may be more readily applied to th'emachine without interfering with the other operative parts, and this without danger of stretching or straining the tube or other portions of the paper or altering the tube-forming or bottomfolding devices in any respect. The clippings or portions of paper removed from the web are not liable to interfere in any way with the manipulations in forming the bag and the 'use of a simple, effective, and lasting punch device can be more readily applied.

. Mounted on the framel A ofthe machine is the usual paper-roll B, the end of -which passes over` guide-rolls and is led into'a'suitable tube-forming device D, and in the lpresent instance the paper passes in contact with a paste device E andl receives a line of paste for securing the edges together in forming the tube. In passing from the roll to the tube-formin g device the paper may pass over one or more guide-rolls, as F F' F2, and I preferably attach my improved punching Adevice to one of the guide-rolls, although 'of course it may be applied to any other roll. In the present instance I have shown it as applied to the guide-roll F, which is arranged adjacent the pasting devices. This guide-roll some positively-moving portion of the machine, so that itis driven in unison therewith, and I have indicated a shaft f, which may be connected, for instance, with what are known as the hold-on rolls of the machine, (notshown,) although it is evident the roll canbe driven from other parts of the machine.

The punching device consists,v essentially,

carrying the punching'device is connected to l Ioov Connected to the roll by some suitable` means, as by the rods J, which may be integral with -the roll or separate therefrom and attached thereto, is a lever K, one end of which extends over and parallel with the axis of the roll and carries in its free end the male cutting-die L, secured and adjusted therein by a screw t or other device. The bearings of this lever K are preferably ex- 'tended on either side, as at K', so that the lever will move between the lugs in a manner to accurately correspond in its movement with the fixed female die.

In order to operate the punch-carrying lever, I provide a cam M, which is rigidly secured to the frame of the machine and is so shaped as to cause the lever at the 4proper moment to carry the punching-die into operative position with the fixed punching-die on` the roll to perform the punching operation, and then to swing the lever outward, so that it will extend substantially at right angles to the shaft of the roll to permit the arm of the lever to pass by the edges of the web of paper being operated upon. The end of the lever bearing on the cam is preferably provided with a friction-roll 7.2, the bearing-surface of which is inclined to correspond with the face of the cam, and the lever is held in contact with such cam by a spring N, so that it will move in accordance with the contour of the cam and be thrown into operative position to perform the punching at the desired time and to move outward to pass the paper without interfering therewith.

Vhile I-have shown the punch-lever as being positively operated by a cam to do the punching, it is evident that it could be operated otherwise--as, for instance, the lever could be actuated by the spring to perform the punching operation and move away from the fixed die by a cam--but I prefer to have the punching operation positive, in the manner shown.

It will be seen that the web of paper passes from the roll B over the roll F and a hole is punched in its edge, the holes being equal distances apart and at uniform distances from the edge of the paper and of course entering at one side of the transverse line on which the strip is subsequently severed and which line is that of the edge of the section constituting the bag.

By the above construction I provide a very simple and effective punching device which is uniform in its action and not liable to get out of order. Both the male and female dies are carried on the same roll, and their relations to each other are maintained so that they will make a clean-cut perforation through the paper, avoiding the inaccuracies and irregularity of operation due to backlash or other causes when the punching devices are carried on separate rolls, which is a fruitful source of derangement, as it is practically impossible to have the cutting edges of the dies iit accurately and not be liable to displacement with relation to each other when they are carried on separate rollers.

Vhile I have described and illustrated a preferred embodiment of my invention and its application to a bag-machine, it will be understood that the details of construction and arrangement may be varied by those skilled in the art without departing `from the essential features thereof, and I do not limit myself to the precise arrangement shown, and it will be apparent that I punch the web of paper before it is folded or otherwise manipulated and when it is passing overaroller and is held in a smooth extended condition, and the portions cut away pass through the female die `into the cored portion of the roll and may fall into a suitable receptacle and are not liable to interfere in any way with a subsequent manipulation of the web.

l. In a paperbag machine, the combination with a tube-folding or tube-forming mechanism, of a guide-roll over which passes a web of paper, and a .punching device consisting of two members carried upon said roll and arranged to punch thepaper before it reaches the folding or tube-forming mechanism, substantially as described.

2. In a paper-bag machine, a guide-roll over which the web of, paper passes, and a punching device consisting of the male and female members moving with the roll, `and stationary devices adapted to bring the members together to punch the paper as it passes over the roll, substantially as described.

3. In a paper-bag machine, the guide-roll carrying a female die on its periphery, and a punch-lever held clear of the edge of the roll and carrying the male die and connected to rotate with the roll, substantially as described.

4. In a paper-bag machine the `guide-roll having an open recess and carrying the female die of the punch-lever pivotally connected to the roll and carrying the male die, substantially as described.

5. In a paperbag machine, the combination with the roll carrying one member of the punch, of a lever connected to the roll eX- tending beyond the edge thereof, and carrying the other member of the punch, and a cam for operating the lever, substantially as described.

6. In a paper-bag machine, the combination with the feed-roll, of a punch-lever carried thereby and adapted to be moved into a position substantially at right angles to the IIO travel of the web over the roll, a xed cam tube-forming mechanism,snbstantial1yas de' for throwingl the lever, and a spring for con-I scribed. trolling said 1ever,substantia11yas described. In testimony whereof. I have signed my 7. In a paperbag machine, the combinaname to this specification in the presence of 5 tion with the tube-formingmechanism,means two subscribing witnesses.

for supportino` and moving a traveling Web' of paper passng to said tube-forming mech- JAMES WEST' anism, and a punching device with parts con- Witnesses:

nected to the same moving support arranged F. L. FREEMAN,

1o to perforate the Web as it travels toward said W. S. MCARTHUR. 

